On Eryphus Perty, 1832 (Dichophyiini), Eriphus Audinet-Serville, 1834 (Trachyderini, Trachyderina), and Eryphus Klug, 1829, with description of a new genus, and corrections on publication dates (Coleoptera, Cerambycidae)

The validity of two forgotten names, EryphusKlug, 1829 and E. rubricollisKlug, 1829, is discussed. The former is considered a nomen oblitum and synonymized with EriphusAudinet-Serville, 1834, a nomen protectum; the latter is revalidated and Eriphus purpuratus Chevrolat, 1862 is considered a junior synonym of Eriphus rubricollis (Klug, 1829). A lectotype is designated to Eryphus rubricollisKlug, 1829. The date of the work where EriphusAudinet-Serville, 1834 was described is corrected. A new genus is described in Dichophyiini Gistel, 1848 to include the species currently allocated in Eryphus sensuNapp & Martins (2002). The dates of publication of genera and species described by Fairmaire & Germain (Révision des Coléoptères du Chili (suite)) are corrected.(AU)

Description of a new species of HippopsisLepeletier & Audinet-Serville and comments on the identity of H. quadrivittata Breuning (Coleoptera, Cerambycidae, Lamiinae, Agapanthiini)

Hippopsis sexlineata, a new species from Ecuador is described. The identity of Hippopsis quadrivittata Breuning, 1940 sensu auctorum is discussed and considered to be Hippopsis fractilinea Bates, 1866.(AU)

A new species and taxonomical and geographical notes on Neotropical Cerambycidae (Coleoptera)

Eburodacrys pilicornis Fisher, 1944 is redescribed based on a female from Brazil (Mato Grosso do Sul), and new state record for Venezuela and new department record for Colombia are provided. Notes and new state records in Brazil for Tilloglomus spectabile Martins, 1975 are provided. The pronotal shape of Piezocera flavipennis (Zajciw, 1970) is commented on. Piezocera serraticollis Linell, 1897 is synonymized with P. monochroa Bates, 1885 and an updated key to species of Piezocera Audinet-Serville, 1834 is provided. Lepturges (Lepturges) luanae sp. nov. is described from Brazil (Goiás). New geographical records are provided for an additional 17 species belonging to three subfamilies (Cerambycinae, Lamiinae and Lepturinae): Gnomidolon cruciferum (Gounelle, 1909); Microibidion bimaculatum Mehl, Galileo, Martins & Santos-Silva, 2015; Lepturges (Lepturges) centralis Monné, 1978; Lepturges (Lepturges) mattogrossis Gilmour, 1962; Leptostylus perniciosus Monné & Hoffmann, 1981; Urgleptes villiersi Gilmour, 1962; Oreodera bituberculata Bates, 1861; Rosalba smaragdina (Breuning, 1940); Colobothea rubroornata Zajciw, 1962; Aerenea subimpetiginosa Breuning, 1948; Cicuiara nitidula (Bates, 1866); Desmiphora (Desmiphora) crocata Melzer, 1935; Estola acricula Bates, 1866; Gisostola bahiensis Martins & Galileo, 1988; Hypsioma chapadensis Dillon & Dillon, 1945; Lypsimena fuscata Haldeman, 1847; and Strangalia flavocincta (Thomson, 1861).(AU)

A new synonymy in Anisopodus White (Coleoptera, Cerambycidae, Lamiinae, Acanthocinini)

Anisopodus subarmatus Melzer, 1931 is synonymized with A. jaculus (Gyllenhal, 1817) and a discussion about the type-locality of the latter is provided. Photographs of the lectotype of the former and of the holotype of the latter are provided.(AU)

Morphological redescription and morphometry of Aniara sepulchralis (Coleoptera: Cicindelidae) from Northeast Para, Brazil

Aniara sepulchralis specimens sampled at different locations (Belém and Bragantina microregions) show differences in size of some morphological structures such as head width, pronotum width, distance between eyes, pronotum base width, labral length, labral width, and spur of the third pair of legs. These changes may be due to biotic, abiotic, and structural factors peculiar to each environment. Differences in structures and morphological measurements of males and females of Aniara sepulchralis were observed, characterized as sexual dimorphism in relation to their teeth and labral-clypeal suture. Females present apical teeth and rectilinear suture, whereas males present a more rounded shape in both teeth and the labral-clypeal suture. Regarding measurements, females have greater body length, head width, eye distance, pronotum length, pronotum width, labral length, and pronotum base width than males.

Expanding knowledge of American Cerambycidae (Coleoptera): new species, new records, and morphological variations

Four new species are described: Xystochroma luteotarsis sp. nov. (Cerambycinae, Callichromatini), from Ecuador; Psyrassa tysoni sp. nov. (Cerambycinae, Elaphidiini), from Guatemala; Bisaltes (Bisaltes) lateralis sp. nov. (Lamiinae, Apomecynini), from Ecuador; and Nagma hovorei sp. nov. (Lamiinae, Calliini), from Ecuador. A key to species of Xystochroma Schmidt, 1924 is provided and Psyrassa tysoni sp. nov. is included in a previous key. Variation in the pubescent pattern of Rosalba strandi (Breuning, 1943) is reported and the species is newly recorded for Paraguay. Chromatic variation in Cyrtinus umbus Martins & Galileo, 2009 (Lamiinae, Cyrtinini) is provided and the species is redescribed based on a dark specimen; a new province record (Puntarenas, Costa Rica) and a new country record (Panama) are included. Chromatic variation and sexual dimorphism in Phaea quadrimaculata Wappes & Santos-Silva, 2021 (Lamiinae, Tetraopini) is reported, and a new Mexican state record (Oaxaca) is provided.

Elevating Omophoita octoguttata elytralis Bechyné, 1956 (Coleoptera: Chrysomelidae: Galerucinae: Alticini) to species

An updated morphological description for Omophoita elytralis (Bechyné, 1956), stat. nov., is presented, including the first account of the genitalia for this species. The separation Omophoita elytralis from O. octoguttata (Fabricius, 1775) is supported by differences found in the median lobe of males, elytral tegument uniform in color (not patterned), and their allopatric geographical distribution.

Description of two new species of Xenocona Gilmour (Coleoptera, Cerambycidae, Lamiinae) from Ecuador

Xenocona Gilmour, 1960 (Acanthocinini) includes seven species distributed through Central America and northern South America. Here we describe two new species from Ecuador: X. audureaui (differing from other species of the genus by the presence of large dark macula on dorsal surface of the basal ⅔ of the elytra combined with the absence of narrow white pubescent lines on other areas of the elytra) and X. uniformis (differing from the other species of the genus by the spiniform outer elytral angle).(AU)

Notes on the biological development of the darkling beetle Blaps nefrauensis nefrauensis Seidlitz, 1893 (Coleoptera: Tenebrionidae) / Notas sobre o desenvolvimento biológico do besouro escuro Blaps nefrauensis nefrauensis Seidlitz, 1893 (Coleoptera: Tenebrionidae)

Several endemic species of Blaps occur in Tunisia, and the species Blaps nefrauensis nefrauensis has been reported in Moulares (urban zone in west-central Tunisia), where it lives and reproduces in home gardens and old buildings. The aim of this work is to study the life cycle of the darkling beetle, considering both field and laboratory rearing conditions. As a result, the beetle species has different developmental stages (egg, larva, prepupa, pupa, and adult) that last about 15 months. Each year during the same period, adults emerge (early summer) and expire (late autumn), larvae hatch (late summer) and pupate (early summer). There is only one generation per year. Females began laying eggs in late July. The eggs were ovoid, white, and about 2.7 mm in length and 1.5 mm in width. Embryogenesis took an average of nine days. The first instar larvae were at initially only 4.5 mm long and ivory white in color. A brief description of the newly egg hatched larva was provided; thus, the nerve fibers innervating the apical setae in the antennae and ligula were detected. Further light microscopic examination of the embryo before hatching from the egg pointed out that the antennal sensilla are protected during the embryogenesis stage.

Várias espécies endêmicas de Blaps ocorrem na Tunísia, e a espécie Blaps nefrauensis nefrauensis foi relatada em Moulares (zona urbana no centro-oeste da Tunísia), onde vive e se reproduz em jardins domésticos e prédios antigos. O objetivo deste trabalho é estudar o ciclo de vida do besouro escuro, considerando as condições de criação em campo e em laboratório. Como resultado, a espécie de besouro tem diferentes estágios de desenvolvimento (ovo, larva, prepupa, pupa e adulto) que duram cerca de 15 meses. Todos os anos, durante o mesmo período, os adultos emergem (início do verão) e expiram (final do outono), as larvas eclodem (final do verão) e se tornam pupas (início do verão). Existe apenas uma geração por ano. As fêmeas começaram a botar ovos no final de julho. Os ovos eram ovóides, brancos, com cerca de 2,7 mm de comprimento e 1,5 mm de largura. A embriogênese demorou em média nove dias. As larvas de primeiro instar tinham inicialmente apenas 4,5 mm de comprimento e uma cor branca marfim. Foi fornecida uma breve descrição da larva recém-eclodida; assim, as fibras nervosas que inervam as cerdas apicais nas antenas e ligulas foram detectadas. Um exame microscópico de luz posterior do embrião antes da eclosão do ovo mostrou que as sensilas antenais são protegidas durante o estágio de embriogênese.

A new species of Ophtalmibidion Martins from French Guiana, and notes on O. luscum Martins (Coleoptera, Cerambycidae, Cerambycinae)

Abstract Ophtalmibidion gutta sp. nov. is described from French Guiana. The elytral color pattern of Ophtalmibidion luscumMartins, 1971 is commented on. A key to species of Ophtalmibidion is provided as well as photographs of all species.(AU)

Notes on the biological development of the darkling beetle Blaps nefrauensis nefrauensis Seidlitz, 1893 (Coleoptera: Tenebrionidae) / Notas sobre o desenvolvimento biológico do besouro escuro Blaps nefrauensis nefrauensis Seidlitz, 1893 (Coleoptera: Tenebrionidae)

Several endemic species of Blaps occur in Tunisia, and the species Blaps nefrauensis nefrauensis has been reported in Moulares (urban zone in west-central Tunisia), where it lives and reproduces in home gardens and old buildings. The aim of this work is to study the life cycle of the darkling beetle, considering both field and laboratory rearing conditions. As a result, the beetle species has different developmental stages (egg, larva, prepupa, pupa, and adult) that last about 15 months. Each year during the same period, adults emerge (early summer) and expire (late autumn), larvae hatch (late summer) and pupate (early summer). There is only one generation per year. Females began laying eggs in late July. The eggs were ovoid, white, and about 2.7 mm in length and 1.5 mm in width. Embryogenesis took an average of nine days. The first instar larvae were at initially only 4.5 mm long and ivory white in color. A brief description of the newly egg hatched larva was provided; thus, the nerve fibers innervating the apical setae in the antennae and ligula were detected. Further light microscopic examination of the embryo before hatching from the egg pointed out that the antennal sensilla are protected during the embryogenesis stage.(AU)

Várias espécies endêmicas de Blaps ocorrem na Tunísia, e a espécie Blaps nefrauensis nefrauensis foi relatada em Moulares (zona urbana no centro-oeste da Tunísia), onde vive e se reproduz em jardins domésticos e prédios antigos. O objetivo deste trabalho é estudar o ciclo de vida do besouro escuro, considerando as condições de criação em campo e em laboratório. Como resultado, a espécie de besouro tem diferentes estágios de desenvolvimento (ovo, larva, prepupa, pupa e adulto) que duram cerca de 15 meses. Todos os anos, durante o mesmo período, os adultos emergem (início do verão) e expiram (final do outono), as larvas eclodem (final do verão) e se tornam pupas (início do verão). Existe apenas uma geração por ano. As fêmeas começaram a botar ovos no final de julho. Os ovos eram ovóides, brancos, com cerca de 2,7 mm de comprimento e 1,5 mm de largura. A embriogênese demorou em média nove dias. As larvas de primeiro instar tinham inicialmente apenas 4,5 mm de comprimento e uma cor branca marfim. Foi fornecida uma breve descrição da larva recém-eclodida; assim, as fibras nervosas que inervam as cerdas apicais nas antenas e ligulas foram detectadas. Um exame microscópico de luz posterior do embrião antes da eclosão do ovo mostrou que as sensilas antenais são protegidas durante o estágio de embriogênese.(AU)

The way to maturity: taxonomic study on immatures of Southern Brazilian Coccinellini (Coleoptera: Coccinellidae) species important in biological control

Among the predatory ladybird beetles (Coccinellidae: Coleoptera), members of the Coccinellini, predators of aphids and psyllids, stand out. Although the beneficial status of these beetles has been acknowledged by biological control researchers, there are no keys or detailed studies on the immature stages of South American Coccinellidae, especially Coccinellini. We provide descriptions and illustrations of the immatures and adults of major predatory Coccinellini species in southern Brazil along with an identification key for fourth instar larvae and pupae. The following species are included: Cycloneda sanguinea (Linnaeus, 1763), Eriopis connexa (Germar, 1824), Harmonia axyridis (Pallas, 1773), Hippodamia convergens Guérin-Méneville, 1842 and Olla v-nigrum (Mulsant, 1866). The morphological study, which included the use of scanning electron microscopy, revealed new characters such as the type of tarsal claws, spiracles, chalazae, parascoli and strumae. The identification key provided here may be useful in biological control programs.(AU)

A new species and synonymy in Atrypanius Bates (Coleoptera, Cerambycidae, Lamiinae) from the Brazilian Amazon forest

Atrypanius jauffretisp. nov. is described from Brazil (Pará). Nyssodrys grisella Bates, 1864 (currently, Atrypanius grisellus) is synonymized with Lepturges lineatocollis Bates, 1863 (currently, Atrypanius lineatocollis), and the species is recorded for the Brazilian states of Rondônia and Mato Grosso.(AU)

New species of Paraodontomma from mid-Cretaceous Burmese amber with muscle tissue preservation (Coleoptera: Archostemata: Ommatidae)

The third member of the extinct ommatid genus Paraodontomma is reported from mid-Cretaceous Burmese amber. Our observation confirms the transverse ridges on elytra as a diagnostic character for the genus. Paraodontomma leptocristatumsp. nov. differs from previously reported congeners mainly in head subquadrate and without prominent protuberances, pronotal disc without prominent ridges, elytral ridges indistinct, and teeth along elytral margins not forming a wavy pattern. Musculature is preserved in the newly discovered specimen of P. leptocristatum, which further demonstrates the preservation potential and irreplaceable value of amber fossils.(AU)

Biological and morphological aspects of Plectris aliena (Coleoptera: Melolonthidae) in sugarcane in Brazil

Plectris aliena (Coleoptera, Melolonthidae) Chapin is a species already recorded causing serious damage to various cultures in North America and Australia. Although its occurrence has recently been reported in Brazil, information about its distribution, taxonomy, and biology is limited. Thus, this study aims to report this new occurrence of P. aliena in Deodápolis (Mato Grosso do Sul, Brazil), as well as to present bioecological and morphological aspects of this species. In this way, the seasonal distribution and the life cycle was studied in the years 2017 and 2018. The larvae were sampled through trenches made in the soil and reared in the laboratory. Adults were captured using “Luiz de Queiroz” light traps. Adults have body with dense white hairs, antennae with 10 antenomeres; they measure approximately 12 mm in length, and their antennal lamellae are larger for males than females. The larvae reach 30 mm in length in the third stage and pupae show about 19 mm in length. The life cycle of this species is univoltine. Due to the great diversity of Plectris and the scarce information available about this species in South America, this study will facilitate its identification in the field and indicate the best time for monitoring in sugarcane crop.

Biological and morphological aspects of Plectris aliena (Coleoptera: Melolonthidae) in sugarcane in Brazil

Plectris aliena (Coleoptera, Melolonthidae) Chapin is a species already recorded causing serious damage to various cultures in North America and Australia. Although its occurrence has recently been reported in Brazil, information about its distribution, taxonomy, and biology is limited. Thus, this study aims to report this new occurrence of P. aliena in Deodápolis (Mato Grosso do Sul, Brazil), as well as to present bioecological and morphological aspects of this species. In this way, the seasonal distribution and the life cycle was studied in the years 2017 and 2018. The larvae were sampled through trenches made in the soil and reared in the laboratory. Adults were captured using “Luiz de Queiroz” light traps. Adults have body with dense white hairs, antennae with 10 antenomeres; they measure approximately 12 mm in length, and their antennal lamellae are larger for males than females. The larvae reach 30 mm in length in the third stage and pupae show about 19 mm in length. The life cycle of this species is univoltine. Due to the great diversity of Plectris and the scarce information available about this species in South America, this study will facilitate its identification in the field and indicate the best time for monitoring in sugarcane crop.(AU)

The way to maturity: taxonomic study on immatures of Southern Brazilian Coccinellini (Coleoptera: Coccinellidae) species important in biological control

Among the predatory ladybird beetles (Coccinellidae: Coleoptera), members of the Coccinellini, predators of aphids and psyllids, stand out. Although the beneficial status of these beetles has been acknowledged by biological control researchers, there are no keys or detailed studies on the immature stages of South American Coccinellidae, especially Coccinellini. We provide descriptions and illustrations of the immatures and adults of major predatory Coccinellini species in southern Brazil along with an identification key for fourth instar larvae and pupae. The following species are included: Cycloneda sanguinea (Linnaeus, 1763), Eriopis connexa (Germar, 1824), Harmonia axyridis (Pallas, 1773), Hippodamia convergens Guérin-Méneville, 1842 and Olla v-nigrum (Mulsant, 1866). The morphological study, which included the use of scanning electron microscopy, revealed new characters such as the type of tarsal claws, spiracles, chalazae, parascoli and strumae. The identification key provided here may be useful in biological control programs.(AU)

Revisiting the morphology of the Cretaceous ommatid beetle Clessidromma palmeri(Coleoptera: Archostemata: Ommatidae)

The morphology of Clessidromma palmeri Jarzembowski et al. from mid-Cretaceous Burmese amber is revised based on a reexamination of the type specimen. Contrary to previous studies, our observation confirms that Clessidromma has open procoxal cavities. The characters such as platform on the ventral side of head, modified metacoxae, and ridges on head and pronotum are suggested to be diagnostic characters for Clessidromma. Clessidromma zengi Kirejtshuk from the same deposit is transferred into a new genus, as Kirejtomma zengicomb. nov.(AU)

Revisiting the morphology and systematic placement of the enigmatic Cretaceous ommatid beetle Bukhkalius lindae(Coleoptera: Archostemata: Ommatidae)

The systematic position of Bukhkalius lindae (Jarzembowski et al. 2017) from mid-Cretaceous Burmese amber is revised based on a re-examination of the type specimen. Our observations confirm that B. lindae lacks unique apomorphies of Tetraphalerus Waterhouse, in which it was originally placed, including complete antennal grooves and mushroom-shaped micro-tubercles. It is well justified to place it into a separate genus, i.e., Bukhkalius Kirejtshuk & Jarzembowski, 2020. The incomplete but distinct antennal grooves and the Tetraphalerus-like mouthparts of B. lindae suggest that it has a close affinity to Tetraphalerus. Therefore, B. lindae may represent a missing link bridging the morphological gap between extant ommatid subfamilies Tetraphalerinae and Ommatinae.(AU)

Megalopodidae (Insecta, Coleoptera): new occurrence and host plant records for Brazil

The Brazilian Megalopodidae fauna consists of 147 species from 11 genera, of which Mastostethus Lacordaire is the most diverse, representing about half of the species. Nevertheless, knowledge about species distributions and their relationships with host plants is still scarce. Since this group has endophytic immatures and bore into branches, they are economically important as they mainly damage Solanaceae species. Thus, this study sought to determine the Megalopodidae species that occur in forest fragments of southwestern and western Paraná and associate them with their host plants. For this purpose, we used material collected with Malaise traps and active manual sampling to determine associations with host plants. A total of 170 specimens of 11 species were sampled, of which Pseudhomalopterus carinatus Pic, 1920 was the most abundant and collected in all fragments. Four species were sampled exclusively through manual collections and associated with their host plants, all of which were new association records for Brazilian megalopodides. Mastostethus pantherinus Lacordaire, 1845 was associated with an Asteraceae for the first time. Additionally, Mastostethus minutus Monrós, 1947 is a new record for Brazil.(AU)